size,mm

d	41.275
D	76.200
T	49.212
B	39.688

specified load,N

Dynamic load (1) C 1	122000
Coefficient (5) e	0.39
Coefficient (5) Y1	1.72
Coefficient (5) Y 2	2.56
Dynamic load (2) C 90	18100
Dynamic load (2) C a90	12200
Dynamic load (2) C 90 (2)	31600
Coefficient (5) K	1.49

bearing designation

inner ring	24780
housing washer	24720XD
Separation ring (4)

Axial dimension, mm

Maximum shoulder chamfer radius R (3)	3.5
Diameter of the shoulder d b	54.0

Bearings seat size, mm

Maximum shoulder fillet radius r (3)	0.8
Shoulder diameter D a	72.0

melt

K a
K b

coefficient

G 1	26.4
G 2	12.5
G g	0.0767

weight kg

weight kg	0.91